Printing attachment for paper-box machines



Feb. 1 9, 1929.

3 Sheets-Sheet 1 61 File ocnza, 1924 5 5 56 i I 14 l Feb. 19, 1929. 1,702,602 J. GERRITSON ET AL PRINTING ATTACHMENT FOR PAPER BOX MACHINES Filed Oct. 28, 1924 3 Sheets-Sheet 2 In veniors: 3 W

Patented Feb. 19, 1929.

' UNITED STATES.

ENT OFFICE."

JACOB GERRITSON, OF,KANKAKEE, ILLINOIS, AND CHARLES H. GEORGE, OF CONTOO- COOK,

NEW HAMPSHIRE, ASSIGNORS TO KINGSIBURY & DAVIS MACHINE COMPANY,

OF SOUTH COVENTRY, CONNECTICUT, A CORPORATION OF NEW HAMPSHIRE.

' ram'rme nmrnonmnnrron PAPER-BOX MACHINES..

Application filed October 28, 1924. Serial No. 746,310. J

The invention combines, withthe feeding and boX forming elements of a paper box machine, devices by means of which a' blank is printed as. it is fed forward to the. box forming elements. I V

The drawings show an illustrative embodiment of the invention, in which embodiment the printing devices just referred to are associated with certain of the elements of a .pa-'

er box machine on the order of that of United States. Letters Patent No. 728,086 granted under date of May 12,1903, upon-application of G. C. Davis and E. W. Webster.v Only such elementsof the box machine proper are shown asare required to be shown inorder to make clear therelations of the printing devices; and the corner. staying devices of the said patent are omitted from the drawings.

Fig.1 of the drawings is a view-represent,

ring the said embodiment in side elevation.

Fig. 2, Sheet 2, is an elevation on a larger scale than Fig. 1 of the printing attachment and associated parts, looking at the side thereofv opposite that'which is shown in Fig. 1.

Fig. 3, Sheet 3, is a plan view of the parts that are shown in Fig. 2. v i

Fig. 4, Sheet 3, is a view in longitudinal section on line 4 4 of Fig. 3. Fig. 5', Sheet 2, is a view in horizontal section on line 5-5 of Fig. 2. S

Fig. 6, Sheet 2, is a'detail view partly in section on line 66 of Fig. 3.

The machine that is partly shown in the drawings is one in which a previously scored and cornered blank for. the cover of a box is fed from a stackor pile d, Fig. 4, intoposition to be acted. upon by a forming block or former 1, Fig; 1, and is broken or bent into form by the conjoint action of said formingbloek or former and folding guides cooperating therewith to which reference is made hereinafter. The mechanism by which the forming blockor former is moved vertically up and down is omitted from the drawings. In practice the machine usually, though not necessarily in all cases, will be equipped with stayapplying mechanism by means of which,

stay-stripsare applied to the various vertical corners or angles of a formed blank, and are subjected to the required compression for the. purpose of securely uniting the said stay- I strips to the meeting portions of the flanges of the blank. Stay applying mechanism 1s T'shown and described in Patent No. 728,086

aforesaid. v r

While in this instance the machine shown is indicated more particularly for employment for producing box covers, the invention is equally adapted for application to machines employed for the production of box bodies. Therefore, in the following description, for convenience of reference, and

support a blank by its edges in position be,

low the block or. former 1, and by the descent of the said block or former the blankis forced down between the said'breaking rods.

and within the enclosure formed by the breaker posts 3, 3, Fig. 1, (the latter being four. in number). The said breaking rods I and. breaker posts, act against the flan es of the blank as the blank is carried down ythe block or former, to fold the flanges of the blank upward against the sides of the block or former. p q

The printing attachment is related properly with respect to the forming instrumentalities to effect the printing of the blanks before they arrive in position for theforming operation.

The stack or pile cl, Fig. 4, (shown also by in order to avoid repetition, the term box is used in the sense of meaning either box.

dotted lines in Fig, 3) of blanks which are to be fed singly to the action of the printing at tachment and of the forming instrumentalities, rests in this instance upon a table I), be-

tween a stationary back-stop post d? at the,

outer ends of the blanks and a gauge d at the inner ends thereof, the blanks being contended to be reciprocated by means of a le fined laterally by means of transversely adjustable cheek-pieces c, c. The said cheekpieces are spaced apart from each other to suit the width of the blanks which are placed between them upon the said table in readiness to be feel.

The precise character, etc, of the in..'trumentalities employed for the purpose of advancing the blanks successively from the bottom of the stack or pile is not material. In this instance the table 7) is given an in-an-d-out reciprocating movement and is provided 'ith a starter constituted by a plate 14', beneath. the pile or stack, having lips 15, 15, adapted to engage with the rear end of the iowermost blank, so that as the table and starter are moved inward toward the printing attachment and forming instriunentalities such blank is pushed forward as a result of such engagement and movement until the leading end of the blank is entered between a pair of feed-rolls 16, 16, Figs. 3 and 4. The said rolls are rotated to cause them, through their engagement with a blank which has been en t ered between them, to feed the said oiforward to 'the printing attachment. c table 7) and starter 14, 15, are shown inor 17 that is operatively combined with an eccentrio 19 (F 1) on a rotating shaft 25.. The feed-rolls 16, 16, are shownas mounted upon shaft-s 161, 161, intended to be rotated by 'means of connections extending from the said shaft 20 to the shaft 161 of the bottom feed r ll, such connections comprising a sprocket wheel 20 on the shaft 20, intermediate sprocket-chains 20", 20", 20", and sprocket-wheels 20, 20, 20, the two feed-roll-shafts being geared together by means of pinions 16 16, upon their ends. The gears 16, 16*, are omitted from Fig. 1, and sprocket-wheel 20 upon the lower feed-roll-shaft is only partial- 1y shown. At 21 is shown a reciprocating pusher having an upstanding portion 21 which, after a blank has been discharged from feed-rolls 16, 16, and the printing attachment, upon the breaking rods 2, 2, engages with the rear end of the blank and pushes the blank farther forward on such rods into position beneath the block or plunger 1. For the actuation of the pusher 21, 21*, it is shown connected by a link with a lever 23 having connected therewith a rod 24 that is engaged with a cam 25 on the shaft 20. The said cam advances the said pusher, which latter in practice is retracted by means of a suitable spring or'weight not shown).

The printing attachment is located in position to operate upon the advancing blank intermedi ate the feed-rolls 16, 16, and the breal: ing rods 2, 2. Its construction may vary in practice. Herein, the printing element is rotating cylinder having a position above the path of the blanks as they are advanced by the feed-rolls 16, 16, toward the breaking rods 2, 2. It is mounted upon the shaft 31, v

the said shaft being journaled in bearings in connection with the cheeks 32, 32, of the attachment frame. The said cylinder is driven from the pinion 16' on one end of the lower feed-roll by means of intermediate pinions 33 and a spur gear 34 which is fixed upon the corresponding end of the cylinder shaft 31. At 35, Figs. 2 and 4-, is a bed-roll which backs up the blank while being printed, said bed-roll being located below the printing cylinder. its shaft 36 is mounted in bearings 37, Fi 2, which are'n'iovable. vertically in ways 38, in connection with the cheeks 32,32,

ing supported vertically by means of springs 39, F 2, p and the cap-plates'40, 40, at the lower ends of the said ways 38. Thesaid springs pen mit the bed-roll to yield as may be necessary to accommodate the thickness of a'blank passi active-en the printing surface of the cyl' 1 er 30 and the surface of thebed-roll. The bed-roll rotated in unison with the printing cylinder by means of a gear 41, F igs. 1 and 3, neon one end of the bed-rollshaft, a can ri ear41, and a gear 20 Fig. 1, upon the corresponding end of the shaft of the lower feed-roll 16. The printing surface is supplied w h ink from a container 42 by means of a W11. distributing-roll 45, and two ink-applying rolls 46, 46. Distributing-roll is in contact with both of the applying ro1ls46, 46. ink being transferred from the wallower-roll 43 to the distributing-roll by means of the transfer-roll 44 which is swung from its position shown in Fig. 4 in contact with the wallowen roll 43 into contact with the distributing-roll 45, and vice versa. To provide for this swinging i'noven'ientthe transfer-roll 44 is journaled in arms 47 of a rockshaft 48 having at one end thereof an arm 49 that is connected by a rod 50 to an arm 51 which in turn is conn cted by means of a link 52 toa lug 53 on of the printing attachment, said bearings be-f ower-roll 43, a transfer-roll 44,a-

interposed between the bearings the slide of the starter 14, so that as the starter is reciprocated inward and outward the transfer-roll 44 is correspondingly swung from a position in contact with the Wallowerroll 43 in Fig. 4 to a position in contact with the distributing-roll 45, and viceversa. In order that the transfer-roll 44 may be pressed yioldingly against the wallower-roll 43, the connection between the arm 49 of rockshaft 48 and the rod 50 iselfected by means of a swivel 54 carried by arm 49 and having a hole through which rod 50 extends, and an expanding spiral spring 55 threaded upon the said rod between the swivel 54 and the nuts 5'? at the outer end oft 1e rod. The spring 55 yields to accommodate any excess movement of the rod 50.

The wallower-roll is rotated intermittently by means of a ratchet 59' which is fixed ing with the said ratchet wheel, and a c' arry-.-- ing arm 61 for the said pawl, mounted upon the wallower-roll-shaft, and having a pin 62" which projects therefrom into a slot 63 in the arm 51. As the arm 51 is swung the Walls of tllO SiLlCbSlOi] 63 act through engagement withthe pin 62 to swing the said arm 61, and thereby actuate the pawl to cause it to rotate the wallow-enroll step by step through the engagement of the pawl with the ratchet wheel 59. v

To provide for automatic separation of the feed-rolls 16, 16, at the beginning of the feed-movement of the starter, to facilitate the insertion of the leading end of a blank between the pair of rolls as the blank is fed toward such rolls, the shaft of the upper feed-roll is mounted in bearings in connec tion with horizontally extending arms 64, 64:, of bell-cranks which are pivotally mounted at 65, 65, upon the cheeks 32, 32, of the printing attachment, the upwardly extending arms of the said bell cranks being engaged by the cam shaped peripheries of disks 66, 66, which are pivotally mounted upon the said cheeks 32, 32. The said upright arms of the bell-cranks are held in contact with the peripheries of the said disks by means of contracting spiral springs 67, 67 The said springs tend to depress the top feed-roll The cam disks 66, 66, are rotated in proper time 'relatowardthe bott0m feed-roll.

tion with respect to the cylinder 30, in this instance by means of levers 68, 68, each ofv the said levers having one end thereof extended into position for engagement withpins 69, 69, projectingoutwardlyfrom the corre sponding disks 66, and each lever being engaged intermediately with aneccentric 70 upon the cylinder shaft 31, while the other end of the lever is slotted'and fits a block 71 and swinging movement of the levers 68, 68,

causing them to laterally engage with and disengage from the pins 69, 69 of the cam.

disks, and in doing so to act after the fashion of pawls to rotate the said cam disk step by step. ment, in order to get the proper relative speed of the printing cylinder, it is arranged to make six revolutions of the said cylinder to every blank-feed movement. The pins upon the cam disks are therefore six in number, so that each action'of the levers 68 rotates the cam disks one-sixth of a revolution, and the noses of the said cam disksare proportioned to cause the feed-rolls to be separated during one'revolution of the cylindershaft 31 and to remain closed together under the action of the springs 67, 67, during the remaining six revolutions of the cylinder shaft.

The bed-roll 35 is moved downward to In the case of theillustrated embodi-- shaped to hold the bearings and bed-roll down except when oneportion'of the periphery of each cam disk is presented to studs 73, such portion having a notch 74apermitting the bed-roll to be raised by the action of its springs 39. The cam disks are in this instance arranged to be rotated step by step throu h the engagement of pins 75 on the disks y levers 7 6 engaged by eccentrics 77 on cylinder shaft 31, the said levers being slotted at 78 and the slotted portions being fitted to blocks 79 which are pivoted at 80 upon the cheeks 32 so as to provide for a combined sliding and swinging movement of the levers 76. The general action of the levers 76 in connection with the cam disks 72 resembles that of the levers 68 and cam disks 66.

By means of the described. combination, each blank taken from the stack cl, Fig. 4, is automatically printed during the feed movement from said stack into position in relation to the forming instrumentalities to be acted upon by the latter.

What is claimed as the invention is .1'. A box machine comprising, in combination, means for forming a blank into boxshape, a support for a stack of box-blanks, a reciprocating blank-feeder, and blankprinting devices located between the stack .ke'epits periphery out of contact with the periphery of the cylinder while no blank is and the forming means including a printing- 2. A combined pr nting and box-making machine comprising, in combination, a support for a stack of individual -.box-blanks,

means for advancing individual blanks sucblank separately to the printing devices, printing devices, including a rotating printing cylinder making a plurality of revolutions to each box-feed and box-forming cycle, certain thereof being idle revolutions occurring during the box-forming operations, and a bed-roll which is'separated from said printing cylinder during the said idle revolutions, and box-forming mechanism comprising a-reciprocating' former and breakerdevices cooperating with such former, said former and said breaker-devices receiving between them the printed blank delivered from the printing devices.

. cessively from the said stack and feeding each 3. A box machine comprising meansv for forming'boX-blanks into box-shape, a support for 'a supply of individual prepared boxblanks, and combined feeding and printing mechanism b which successive individual blanks from t e said supply respectively are fed with a continuous feed-movement through the printing mechanism to the box-forming rotations occurring during the box-forming means, being thereby successively printed operations, and a bed-r0l1 which is separated simultaneously With such feed-movement, the from said printing cylinder during the said 10 printing elements of the said mechanism inidle revolutions.

5 eluding a printing cylinder making a plurality of revolutions to each b1ank-feed and JACOB GERRITSON. box-forming cycle, certain thereof being idle 1 CHARLES H. GEORGE. 

